Creating a file in memory because Heroku does not allow filesystem access

Question

I have an Experiment model with the fields -

• start_date
• end_date
• results - a CSV dump of results from the experiment. Attachment managed via Paperclip and stored remotely on Amazon S3

I'm able to generate the CSV contents of the results attachment in memory, but since Heroku has no filesystem access, I can't physically write the file to disk and transfer it to Amazon S3.

Is there a way around this? Perhaps a way to virtually create a file in memory and then move it over to a remote host like S3?

Thanks!

Answer 1

You can use ./tmp directory to create a temporary file. Please checkout this question for more details:

Creating temporary files in Heroku